Today I went out and clamped then drilled the firewall to the fuse. It's actually very straight-forward...just make sure that the 'web' of the firewall is 5/8 inch behind the forward skin edge and the centerline of the bottom angle of the firewall is lined up with the second line of rivet holes. I did, however realize that my twists on my longerons weren't quite right. I didn't want to pull the longerons out to fix it so what I did was bring a sawhorse directly under the station where the bend starts and used a c-clamp to clamp it down. Then I used a crescent wrench to twist the longerons some more. Got it right on the money. In the picture above at the top up the firewall (which is at the bottom since this is all upside down) you can sort of see the curvature of the skin that mandates the longeron twist.

Oh yeah...I also make and drilled the F-704-L attach stripst that connect the 704 vertical bars to the longerons.

This was the only complicated part...the upper corner brackets on the firewall. It's just a little interesting clamping this stuff and drilling it...but not terribly difficult.

And how about a vanity shot looking aft.

By the way. These pictures are a little misleading. It seems like I was only in the garage a few hours today...but it was more like 8 hours or so.